Melatonin

Overview

It's sold as a supplement, so the amount in a product can vary from the label.

It works best for shifting your sleep timing, not for keeping you asleep.

What it's used for

• Jet lag
• Trouble falling asleep at the right time
• Off-label: sleep problems in some children (with a provider's guidance)

How to take it

• Take it 1 to 2 hours before your target bedtime.
• Start with the smallest amount.
• For children, ask a provider first and use a child product. Gummies look like candy; keep them out of reach.

Your dose depends on your health and other medicines. Always follow your prescription label, and ask your pharmacist if anything is unclear.

Side effects

Common side effects

• Next-day grogginess
• Headache
• Dizziness
• Vivid dreams

Warnings

• Don't drive after taking it.
• Choose products with a USP or NSF quality seal.

Other medicines, foods, and alcohol

• Blood thinners, seizure medicines, and blood pressure medicines may be affected.
• Fluvoxamine raises its level a lot.
• Alcohol and sedating medicines add to drowsiness.

Tell your provider and pharmacist about every medicine, vitamin, and supplement you take.

Pregnancy and breastfeeding

Ask your provider before using it in pregnancy or while breastfeeding.

Missed doses, overdose, and storage

If you miss a dose

Only take it at bedtime. If you forget, skip it that night; don't take it in the middle of the night.

If someone takes too much

Call Poison Control at 1-800-222-1222 or get help online at poison.org. Call 911 if the person collapses, has a seizure, has trouble breathing, or can't be woken.

Storing it

Store at room temperature, away from heat and moisture (not in the bathroom), and out of reach of children and pets.

Conditions it's used for

• Jet lag
• Insomnia